Blog
Why isn’t my sensor turning on my system when it is snowing outside?
When we say sensor, we are talking about a CIT-1, GIT-1 or a SIT-6E (or one of their predecessors). A sensor cannot switch a system on its own and must be installed with a control (or control panel). If your system is using a device that looks like a sensor, but directly switches a load, then you probably have a controller. GIT-3A, GIT-4, HSC-4, HSC-5, LCD-7, and other LCD models are all controllers; which combine a sensor with a switching relay. A sensor requires the following: Power from the control. Temperature below 38°F...
read moreCan I simulate a sensor call for heat to test a GIT-4 gutter deicing controller?
Unfortunately no, the sensor and controller of the GIT-4 communicate via a data link that cannot be simulated.
read moreCan I extend the wires and how far away can I locate the sensors?
Yes. The sensor wires can be extended up to 500 feet with #18 awg wire and 2000 feet with #12 awg wire.
read moreCan I use a GIT-1 sensor to replace the sensor on my GIT-3A controller?
In a word: No! The GIT-1 is meant for use with APS control panels, EUR-5A controls and the PRO series controls. The GIT-3A sensor is unique to the GIT-3A.
read moreDo I need to supply the controller with a ground fault breaker?
When using a control or controller that does not include integral ground fault, using a ground fault breaker is required to provide protection for the heater tapes used with this product. Failure to do so will put the installation at risk for fire if the heaters short. You will want to use the GFEP breaker that has the higher ~30 mA trip standard required for equipment protection.
read moreWhat voltage measurement will help determine if the GIT-3A is working properly?
Aside from checking the input voltage from the circuit breaker you can also check the voltage between the red and black sensor wires. The controller should supply 16VDC to the sensor over these wires.
read moreWhat are the BEMC connections foron my EUR-5A ?
BEMC stands for Building Energy Management Computer, which can be used to remotely monitor and control the EUR-5A controller. These connections are made to pins 10 through 16. The following diagram will aid in making these connections. The BEMC can use the override on and override off to turn the systems on and off and provides internal dry contacts for monitoring and alarms. For a complete description of how the BEMC works refer to the manual page 9.
read moreWhen the system was installed the high temperature sensor was not installed, can I still make the unit work?
The high temperature limit sensor is intended for two purposes, either as a slab sensor when the EUR-5A is used for heating sidewalks, patios or drives ways or for ambient air temperature when the unit is used for roof and gutter melt systems. In roof and gutter applications the sensor is run outside the building and placed in a location that is out of direct sunlight and away from other heat sources such as air conditioners or vents. In slab applications this sensor is usually installed in conduit. If this was not provided for when the slab...
read moreWhy doesn’t adjusting the High Temperature Limit dial turn the unit on?
The high temperature limit dial is used to set the maximum temperature that the unit will work at. When the High temperature limit sensor detects a temperature higher than what is selected on the dial it overrides the system and shuts it off. This function can be used to further regulate slab temperatures in pavement applications and as a warm weather override when the system is used for roof and gutter melting applications.
read moreWhy is my heater light flashing?
A flashing supply light indicates a missing or broken High Temperature Limit sensor. This sensor is required. The sensor is not polarized and must be connected to pins 1 and 2. Refer to figure 17 in the manual.
read more